This is an auto-generated mail on Fri May 22 12:00:00 PDT 1998 It is not checked before it leaves my workstation. However, hopefully you will find this report interesting and will take the time to look through this to see if you can improve the amount of aggregation you perform. The report is split into sections: 0) General Status List the route table history for the last week, list any possibly bogus routes seen and give some status on ASes. 1) Gains by aggregating at the origin AS level This lists the "Top 30" players who if they decided to aggregate their announced classful prefixes at the origin AS level could make a significant difference in the reduction of the current size of the Internet routing table. This calculation does not take into account the inclusion of holes when forming an aggregate so it is possible even larger reduction should be possible. 2) Weekly Delta A summary of the last weeks changes in terms of withdrawn and added routes. Please note that this is only a snapshot but does give some indication of ASes participating in CIDR. Clearly, it is generally a good thing to see a large amont of withdrawls. 3) Interesting aggregates Interesting here means not an aggregate made as a set of classful routes. Thanks to xara.net for giving me access to their routing tables once a day. Please send any comments about this report directly to me. Check http://www.employees.org/~tbates/cidr-report.html for a daily update of this report.  ------------------------------------------------------------------------------ CIDR REPORT for 22May98 0) General Status Table History ------------- Date Prefixes 150598 51370 160598 51935 170598 51899 180598 51874 190598 51446 200598 51474 210598 51210 220598 51216 Check http://www.employees.org/~tbates/cidr.plot.html for a plot of the table history. Possible Bogus Routes --------------------- AS Summary ---------- Number of ASes in routing system: 3581 Number of ASes announcing only one prefix: 1707 (896 cidr, 811 classful) Largest number of cidr routes: 364 announced by AS3561 Largest number of classful routes: 1082 announced by AS701  1) Gains by aggregating at the origin AS level --- 22May98 --- ASnum NetsNow NetsCIDR NetGain % Gain Description AS816 800 516 284 35.5% UUNET Canada (ASN-UUNETCA-AS4) AS4293 464 240 224 48.3% IMCI AS2493 527 308 219 41.6% iSTAR Internet, Inc. AS174 809 625 184 22.7% Performance Systems International AS701 1082 904 178 16.5% Alternet AS3602 483 305 178 36.9% Sprint Canada Inc. AS2048 161 89 72 44.7% LaNet AS3248 130 60 70 53.8% VIAnet AS5668 115 46 69 60.0% Century Telephone Inc. AS3221 110 41 69 62.7% EENet Autonomous System AS7046 193 133 60 31.1% UUNET-CUSTOMER AS271 112 53 59 52.7% BCnet Backbone AS4755 88 32 56 63.6% Videsh Sanchar Nigam Ltd. India AS3804 196 140 56 28.6% Bell Solutions AS549 208 155 53 25.5% ONet Backbone AS1221 277 226 51 18.4% AARNET-AS AS72 85 37 48 56.5% Schlumberger Information Network AS4539 73 26 47 64.4% NETROPOLIS AS1239 538 491 47 8.7% SprintLink Backbone AS6335 66 23 43 65.2% NTRNET AS4740 366 323 43 11.7% ASN-OZEMAIL (Ozemail Pty Ltd) AS852 157 117 40 25.5% AGT Advance Communication AS4200 130 90 40 30.8% AGIS (Apex Global Information Ser AS10928 86 46 40 46.5% UNKNOWN AS684 94 55 39 41.5% Manitoba Regional Network Backbon AS7657 129 91 38 29.5% The Internet Group Limited AS3493 165 127 38 23.0% INTERLINK AS1591 140 102 38 27.1% SAIC DISM AS762 116 79 37 31.9% WELLFLEET-AS AS719 440 403 37 8.4% LANLINK autonomous system For the rest of the previous weeks gain information please see http://www.employees.org:80/~tbates/cidr-report.html  2) Weekly Delta Please see http://www.employees.org:80/~tbates/cidr-report.html for this part of the report  3) Interesting aggregates Please see http://www.employees.org:80/~tbates/cidr-report.html for this part of the report